375 Amp Cable Size at 300 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
IEC 60364-5-52 metric conductor sizing (mm²), voltage drop, and power loss calculation for 375 A over 300 m (984.3 ft).
Copper Cable (≤3% Drop)9× 400 mm²Drop: 1.34V (2.79%)
Aluminum Cable (≤3% Drop)400 mm²Drop: 19.86V (41.37%)
Voltage at Load46.7 VLine Loss: 501.6 W
Max Power & Breaker18.0 kW400A MCB/MCCB
IEC 60364 Cable Cross-Section Table (1.5 mm² – 400 mm²) for 375A at 300m
| Cross-Section (mm²) | Cu Ampacity | Al Ampacity | Cu Voltage Drop | Load Voltage | Al Voltage Drop | Power Loss | Status |
|---|---|---|---|---|---|---|---|
| 1.5 mm² | 16 A | 12 A | 3210.0 V (6687.5%) | 0.0 V | 5295.0 V (11031.25%) | 1203750.0 W | Drop High |
| 2.5 mm² | 24 A | 18 A | 1926.0 V (4012.5%) | 0.0 V | 3177.0 V (6618.75%) | 722250.0 W | Drop High |
| 4 mm² | 32 A | 25 A | 1203.75 V (2507.81%) | 0.0 V | 1985.62 V (4136.72%) | 451406.2 W | Drop High |
| 6 mm² | 41 A | 32 A | 802.5 V (1671.88%) | 0.0 V | 1323.75 V (2757.81%) | 300937.5 W | Drop High |
| 10 mm² | 57 A | 44 A | 481.5 V (1003.12%) | 0.0 V | 794.25 V (1654.69%) | 180562.5 W | Drop High |
| 16 mm² | 76 A | 59 A | 300.94 V (626.95%) | 0.0 V | 496.41 V (1034.18%) | 112851.6 W | Drop High |
| 25 mm² | 101 A | 78 A | 192.6 V (401.25%) | 0.0 V | 317.7 V (661.88%) | 72225.0 W | Drop High |
| 35 mm² | 125 A | 97 A | 137.57 V (286.61%) | 0.0 V | 226.93 V (472.77%) | 51589.3 W | Drop High |
| 50 mm² | 151 A | 118 A | 96.3 V (200.62%) | 0.0 V | 158.85 V (330.94%) | 36112.5 W | Drop High |
| 70 mm² | 192 A | 150 A | 68.79 V (143.3%) | 0.0 V | 113.46 V (236.38%) | 25794.6 W | Drop High |
| 95 mm² | 232 A | 181 A | 50.68 V (105.59%) | 0.0 V | 83.61 V (174.18%) | 19006.6 W | Drop High |
| 120 mm² | 269 A | 210 A | 40.12 V (83.59%) | 7.9 V | 66.19 V (137.89%) | 15046.9 W | Drop High |
| 150 mm² | 309 A | 241 A | 32.1 V (66.88%) | 15.9 V | 52.95 V (110.31%) | 12037.5 W | Drop High |
| 185 mm² | 353 A | 275 A | 26.03 V (54.22%) | 22.0 V | 42.93 V (89.44%) | 9760.1 W | Drop High |
| 240 mm² | 415 A | 324 A | 20.06 V (41.8%) | 27.9 V | 33.09 V (68.95%) | 7523.4 W | Drop High |
| 300 mm² | 477 A | 372 A | 16.05 V (33.44%) | 31.9 V | 26.47 V (55.16%) | 6018.8 W | Drop High |
| 400 mm² | 570 A | 445 A | 12.04 V (25.08%) | 36.0 V | 19.86 V (41.37%) | 4514.1 W | Drop High |
FAQ — 375 Amp Cable Size at 300 Meters (48V DC (LiFePO4 Battery Bank / Telecom))
What mm² cable size is required for 375A at 300 meters (48V)?
According to IEC 60364-5-52 ampacity and the 3% maximum voltage drop standard, you need 9× 400 mm² copper cable for 375A over 300m at 48V (voltage drop: 1.34V or 2.79%).
What is the power capacity of 375A at 48V?
At unity power factor, 375A at 48V supports 18.0 kW with a standard 400A circuit breaker.
Related Lengths & Currents (48V)
375A · 5m (48V)375A · 10m (48V)375A · 15m (48V)375A · 20m (48V)375A · 25m (48V)375A · 30m (48V)375A · 35m (48V)375A · 40m (48V)375A · 45m (48V)375A · 50m (48V)375A · 60m (48V)375A · 70m (48V)10A · 300m (48V)16A · 300m (48V)20A · 300m (48V)25A · 300m (48V)32A · 300m (48V)40A · 300m (48V)50A · 300m (48V)63A · 300m (48V)80A · 300m (48V)100A · 300m (48V)125A · 300m (48V)160A · 300m (48V)200A · 300m (48V)